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大西洋鲑性腺分化发生在孵出４５—６３天，约４９５—６９３度日。经热休克处理获得的三倍体稚鱼，性腺在分化之前明显大于正常二倍体鱼。雌性三倍体稚鱼性腺在细胞学分化时受抑，初级卵母细胞不能发育；雄性三倍体稚鱼性晚在细胞学分化阶段生长明显减慢，初级精母细胞尚能发育。
Atlantic salmon gonadal differentiation occurs in 45-63 days of incubation, about 495-693 degrees day. The triploid juveniles obtained by heat shock treatment showed significantly more gonads than normal diploid fish before differentiation. Female triploids juvenile gonadal cells in the cytological differentiation of depression, primary oocytes can not develop; male triploid juvenile sex late in the cytological differentiation of growth was significantly slower, primary spermatocytes still able to develop.